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I wasn't taking your comment as adding a battery to the ground, I was just stating that unless you are running some serious equipment a secondary battery is more problem then good. A cap is always a great addition no matter what power your running, just adds a reserve for the lower notes when the accessories are at an idle.
G'job 94frankenstein, I think this guy has his amp bridged. That may be why it's cutting out after extended periods of high volume. Depending on how its wired to the amp. Sedain, can you post the specs on the amp and subs. I've googled the t400-4 and found a 50wx4, is this correct? The subs are probably the P310D4, correct me if I'm wrong.
.... read the posts guys. If you had read, we've already discussed power rating of his amp. No need to Google jack..... The 4-channel amp is not powering his subs. Something tells me the amp is not bridged to four seperate speakers....:slap:
Go to radio shack, best buy or any electronics store and buy a squirrel cage fan, hell buy 2 if you think it's needed. And hook them up to the amp and have them sitting either on side of the amp or on top of them. Or have them facing backwards where ever the vent is on the amp to let the air escape better.
If you can't find any squirrel cage fans, then just get 2 or 3 72cm cooling fans for a computer and do the same thing with them. Also, if you are still having the problem, you may want to think about buying some thermal compound and opening the amp up and applying the thermal compound to the attaching parts of the case to help cut down on heat expanding through the amp.
What voice coils do you have on that P3 and and is your overall ohms at the amp? Don't those P3's come with either dual 4's or dual 2's? Sounds to me like the impedance is too low... but a competent shop would know this.
What voice coils do you have on that P3 and and is your overall ohms at the amp? Don't those P3's come with either dual 4's or dual 2's? Sounds to me like the impedance is too low... but a competent shop would know this.
At this point, I don't think we are dealing with a competent shop. :/
I agree... That impedence problem was where I was trying to get but I misread the first post where it says its not the sub. However, I'm right there with you Bonemaro.
At this point, I don't think we are dealing with a competent shop. :/
x 200 mil
Originally posted by dittylopez
I agree... That impedence problem was where I was trying to get but I misread the first post where it says its not the sub. However, I'm right there with you Bonemaro.
Oh... I didn't see page 2 of this thread when I posted. Weird. Yeah, I'm betting my left nut on this one.
What voice coils do you have on that P3 and and is your overall ohms at the amp? Don't those P3's come with either dual 4's or dual 2's? Sounds to me like the impedance is too low... but a competent shop would know this.
the amplifier is a
t500 - 1bd
250W x 1 @ 4-Ohms RMS
400W x 1 @ 2-Ohms RMS
500W x 1 @ 1-Ohm RMS
im pretty sure the subwoofer is dual voice coil, 4 ohm..
how would impedance be to low? is there a knob or setting on amp to change impedance?
Go to radio shack, best buy or any electronics store and buy a squirrel cage fan, hell buy 2 if you think it's needed. And hook them up to the amp and have them sitting either on side of the amp or on top of them. Or have them facing backwards where ever the vent is on the amp to let the air escape better.
i dont think there is a overheating issue anymore after the ground was sanded down by the body shop i take my car to (they noticed the problem). i actually remember pointing out the fact that paint was around the ground to the audio shop and they dismissed it and said its fine as-is. (they sanded down the ground for subwoofer amp,but not the speaker amp).
G'job 94frankenstein, I think this guy has his amp bridged. That may be why it's cutting out after extended periods of high volume. Depending on how its wired to the amp. Sedain, can you post the specs on the amp and subs. I've googled the t400-4 and found a 50wx4, is this correct? The subs are probably the P310D4, correct me if I'm wrong.
yes, t400-4 for the infinity kappa perfect 6.1's and t500 - 1bd (cant be bridged)for the p310d4, dual 4 ohm voice coils?
the way i understand it they should have the t400-4 amp wired to all 4 speakers...dunno why they would of sold it to me otherwise...4 channels for 4 speakers?
250W x 1 @ 4-Ohms RMS
400W x 1 @ 2-Ohms RMS
500W x 1 @ 1-Ohm RMS
im pretty sure the subwoofer is dual voice coil, 4 ohm..
how would impedance be to low? is there a knob or setting on amp to change impedance?
Nope... The impedance is the load placed on the amp by the driver, based on Ohm's Law of Ohms = Volts divided by Amps. Your voltage is "constant" (so-to-speak) so as you drop the impedance (Ohms) you increase the current draw (Amps) to the point that you over-heat and explode. However, the t500 is a 1 ohm stable mono block, so impedance wouldn't be the issue, even if you paralleled a dual 2 ohm P3. At the most, a dual 4 ohm driver should only be making the amp work half as hard as it can.
running that little of equipment would not nessesitate an additional battery (it would just put additional strain on his alt), and a cap would not fix the problem. The line going to the battery is indeed a 12v constant, the reason you don't want to got to the battery for the ground, is because the chasis is ample ground (that is where your battery is grounded) and anything longer than an 18 inch ground will most likely result in noise. You need to have both amps ground at the same location in the car and make sure it is a good ground and I am pretty sure you problems will be gone.
the problem is partly resolved after the ground was sanded down. (paint inbetween metal/wire connection).
but now the problem seems to be with the ENTIRE system cutting out (not just the speakers like before) so now the subwoofer is cutting out to.
i dont know what its related to, there doesnt seem to be a heat problem anymore at all anymore, neither amplifier gets over anything i would consider "warm".
what i did try to do is i turned the volume almost all the way up and waited for it to cut out and i was watching amplifiers to see if the thermal protection things turned on but the system didnt cut out for like 5 minutes and i didnt want anyone calling the police on me..and now im out of state so cant do anything until later this coming month.
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